diff --git a/.github/meson/action.yml b/.github/meson/action.yml
index 63e018ceb4..ed7dd63a08 100644
--- a/.github/meson/action.yml
+++ b/.github/meson/action.yml
@@ -130,7 +130,7 @@ runs:
       if: inputs.os != 'windows-latest'
       shell: bash
       run: |
-        VERSION_LIBHSL="4.0.1"
+        VERSION_LIBHSL="4.0.2"
         cd ..
         if [[ "${{ inputs.os }}" == "windows-latest" ]]; then
           wget https://github.com/ralna/libHSL/archive/refs/tags/v${VERSION_LIBHSL}.zip
@@ -142,6 +142,7 @@ runs:
         cd libHSL-${VERSION_LIBHSL}/hsl_subset
         meson setup builddir --buildtype=debug \
                              --prefix=$DEPS/deps \
+                             -Dquadruple=false \
                              -Ddefault_library=shared
         meson compile -C builddir
         meson install -C builddir
diff --git a/meson.build b/meson.build
index 263fd3948f..11d19b05ed 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project(
   'GALAHAD',
   'c', 'cpp', 'fortran',
-  version: '5.0.0',
+  version: '5.0.1',
   license: 'BSD-3',
   meson_version: '>= 0.63.0',
   default_options: [
diff --git a/src/version/version.F90 b/src/version/version.F90
index cb63b7ef36..5edbef2fa0 100644
--- a/src/version/version.F90
+++ b/src/version/version.F90
@@ -23,7 +23,7 @@ MODULE GALAHAD_VERSION
 
       INTEGER ( KIND = ip_ ), PARAMETER :: major = 5
       INTEGER ( KIND = ip_ ), PARAMETER :: minor = 0
-      INTEGER ( KIND = ip_ ), PARAMETER :: patch = 0
+      INTEGER ( KIND = ip_ ), PARAMETER :: patch = 1
 
     CONTAINS